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302 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.

Case Description

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Summary based on the NamUs case record (MP9653) and 6 other sources
On May 26, 1990, a 31-year-old man named Arthur James Warren Jr. vanished from Alexandria Bay, New York, following a tragic boating incident on the St. Lawrence River. At the time of his disappearance, Arthur, a resident of Salina, New York, where he worked as an electrician, was enjoying a late-night boat ride with three other individuals. The group was in a 22-foot speedboat when the vessel, reportedly traveling at a high rate of speed, collided with an eight-ton buoy near channel marker 202 of Wellesley Island. The force of the impact, which occurred between 1:30 and 2:00 a.m., resulted in the complete destruction of the boat.

The aftermath of the crash was chaotic and devastating. Two of the passengers were rescued from the water, but the tragedy claimed the life of another passenger, Mary Beth Caruso, who drowned. Arthur Warren, however, was nowhere to be found. He was last seen wearing a white and blue striped short-sleeved shirt, blue jeans, and white sneakers. He also had on a Rolex watch. Arthur is described as a white male with black hair and brown eyes, standing at 5'11' and weighing 170 pounds. He had distinguishing scars on his forehead and abdomen.

Despite extensive search efforts, Arthur's body has never been recovered, and he is presumed to have drowned in the St. Lawrence River. For over three decades, his family has been left with unanswered questions and the enduring pain of his absence. Memorials published in subsequent years show that his loved ones continue to remember him, reflecting on their cherished memories and the profound loss they still feel. The case remains a sorrowful chapter in the history of the Thousand Islands region, a permanent reminder of a life cut short by a devastating accident. The investigation into the incident highlighted the dangers of high-speed boating, and for Arthur's family, it marked the beginning of a long and unresolved period of grief.

Last Seen: May 26, 1990

Possible Unidentified Matches (5)

Unidentified remains cases whose details are consistent with this person, ranked by how closely they compare. Fields that are unknown in either case are left out of the score.

76%Possible
John Doe — Queens, New York - unidentified case UP8048
John Doe — Queens, New York
UP8048 • Found Oct 12, 1993
View case
Sex ✓Male
Age 100%Est. 30–45 vs 31 when missing
Race 100%White
Location 48%272 mi away, same state
TimingFound 3 years after last seen
Height 100%5'10" vs 5'11"
Weight 82%202 lb vs 170 lb
Hair 100%Black vs Black
Eyes 100%Brown vs Brown
76%Possible
John Doe — Youngstown, New York
UP13041 • Found Apr 10, 1993
View case
Sex ✓Male
Age 100%Est. 30–45 vs 31 when missing
Race 100%White
Location 60%173 mi away, same state
TimingFound 3 years after last seen
Height 100%5'11" vs 5'11"
Weight 100%163 lb vs 170 lb
Hair 60%Brown vs Black
76%Possible
John Doe — Bronx, New York - unidentified case UP8090
John Doe — Bronx, New York
UP8090 • Found Jun 26, 1990
View case
Sex ✓Male
Age 100%Est. 20–35 vs 31
Race 100%White
Location 49%263 mi away, same state
TimingFound 4 weeks after last seen
Height 84%5'9" vs 5'11"
Weight 91%145 lb vs 170 lb
Hair 100%Black vs Black
Eyes 100%Brown vs Brown
75%Possible
John Doe — Queens, New York - unidentified case UP8340
John Doe — Queens, New York
UP8340 • Found Aug 24, 1992
View case
Sex ✓Male
Age 86%Est. 35–50 vs 31 when missing
Race 100%White
Location 48%272 mi away, same state
TimingFound 2 years after last seen
Height 100%6'0" vs 5'11"
Weight 100%170 lb vs 170 lb
Hair 100%Black vs Black
Eyes 100%Brown vs Brown
75%Possible
John Doe — Kearny, New Jersey - unidentified case UP1790
John Doe — Kearny, New Jersey
UP1790 • Found Mar 29, 1991
View case
Sex ✓Male
Age 85%Est. 25–45 vs 31
Race 100%White
Location 49%262 mi away
TimingFound 10 months after last seen
Height 100%5'10" vs 5'11"
Weight 100%170 lb vs 170 lb
Hair 100%Black vs Black
Eyes 100%Brown vs Brown

These comparisons are generated automatically from public NamUs case data and are not confirmed identifications. Only DNA, dental or fingerprint comparison by investigators can confirm an identity. If you believe two cases are connected, contact the agency handling the unidentified case.

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